NEW DELHI, Oct. 11 — A revolution is taking place in India that could change what most of the world drives.

Next fall, the Indian automaker Tata Motors is scheduled to introduce its long-awaited People’s Car, with a sticker price of about $2,500. Hot on its tail may be as many as half a dozen new ultra-affordable vehicles — some from the world’s leading carmakers, including Toyota and Renault - Nissan. More here.